Maven archetype: Modify artifactId

Question

While working on project, my requirement is to create a module.

The command will be like:

mvn archetype:generate \
  -DarchetypeCatalog=local \
  -DartifactId=test-module

And the target should have following file structure

test-module
|--pom.xml
`--src
   `--main
      |--install
      |  `--install.sh
      `--scripts
         `--test_module.sh

My whole goal is to create another variable derived from artifactId (say artifactIdWithUnderscore) replacing all hyphens - by underscope _. So that I can use the updated variable to create file(s).

Example:

+------------------+---------------------------------+
|INPUT - artifactId|OUTPUT - artifactIdWithUnderscore|
+------------------+---------------------------------+
|    test-module   |          test_module            |
|       temp       |             temp                |
| test-temp-module |       test_temp_module          |
+------------------+---------------------------------+

I tried to create a new variable as artifactIdWithUnderscore by adding following entries in archetype-metadata.xml

Option 1:

<requiredProperty key="artifactIdWithUnderscore" >
  <defaultValue>${StringUtils.replace(${artifactId}, "-", "_")}</defaultValue>
</requiredProperty>

Output:

${StringUtils.replace(${artifactId}, "-", "_")}

Option 2:

<requiredProperty key="artifactIdWithUnderscore" >
  <defaultValue>${artifactId.replaceAll("-", "_")}</defaultValue>
</requiredProperty>

Output:

maven_archetype_script

The above value of artifactId is coming from the POM of archetype project itself.

Option 3:

<requiredProperty key="artifactIdWithUnderscore" >
  <defaultValue>${artifactId}.replaceAll("-", "_")</defaultValue>
</requiredProperty>

Output:

test-module.replaceAll("-", "_")

Please let me know how I can achieve this.

EDIT:

Option 4:

<requiredProperty key="artifactIdWithUnderscore" >
    <defaultValue>${__artifactId__.replaceAll("-", "_")}</defaultValue>
</requiredProperty>

Output:

INFO: Null reference [template 'artifactIdWithUnderscore', line 1, column 1] : ${__artifactId__.replaceAll("-", "_")} cannot be resolved. 
Define value for property 'artifactIdWithUnderscore': ${__artifactId__.replaceAll("-", "_")}: :

Answer 1

Option 2 work for me:

<requiredProperty key="artifactIdWithoutDash">
  <defaultValue>${artifactId.replaceAll("-", ".")}</defaultValue>
</requiredProperty>

I can use __artifactIdWithoutDash__.sh has a file name to create the file (in my case it was: some.letters.__artifactIdWithoutDash__.cfg)

Answer 2

In my case (which is somehow similar) a slightly modified option 2 did the trick:

<requiredProperty key="package-with-slash">
    <defaultValue>${package.replace(".", "/")}</defaultValue>
</requiredProperty>

Note, that the replacement is done by the apache velocity engine and the originally used replaceAll uses a regex expression.